18961164

素因数分解:

$2^2\times 3^2\times {\mathrm{19}}^2\times {\mathrm{1459}}^1$

素因数の和:1507

約数の個数: 54

約数和(自身を含む): 50619660

約数和(自身を除く): 31658496

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 19, 36, 38, 57, 76, 114, 171, 228, 342, 361, 684, 722, 1083, 1444, 1459, 2166, 2918, 3249, 4332, 4377, 5836, 6498, 8754, 12996, 13131, 17508, 26262, 27721, 52524, 55442, 83163, 110884, 166326, 249489, 332652, 498978, 526699, 997956, 1053398, 1580097, 2106796, 3160194, 4740291, 6320388, 9480582, 18961164]

約数ペア:

[(1, 18961164), (2, 9480582), (3, 6320388), (4, 4740291), (6, 3160194), (9, 2106796), (12, 1580097), (18, 1053398), (19, 997956), (36, 526699), (38, 498978), (57, 332652), (76, 249489), (114, 166326), (171, 110884), (228, 83163), (342, 55442), (361, 52524), (684, 27721), (722, 26262), (1083, 17508), (1444, 13131), (1459, 12996), (2166, 8754), (2918, 6498), (3249, 5836), (4332, 4377)]